Continuous-wave single-frequency 295 nm laser source by a frequency-quadrupled optically pumped semiconductor laser

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Abstract

Up to 136 mW of cw single-frequency output at 295 nm was obtained from a frequency-quadrupled optically pumped semiconductor laser. The highly strained InGaAs quantum-well semiconductor laser operates at 1178 nm in a single frequency. The single-frequency intracavity-doubled 589 nm output is further converted to 295 nm in an external resonator using β-BaB2O 4.

Original languageEnglish (US)
Pages (from-to)3511-3513
Number of pages3
JournalOptics letters
Volume34
Issue number22
DOIs
StatePublished - Jan 1 2009

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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